I put a '96 or so re-pro grill in my '86.5
Have to take off the bumper and turn signals to put it in. My only problem was that It didn't not line up exactly with the turn signals, or with the mounting holes in the radiator support.
When I went to put the bumper on, I couldn't hook the back lip of it on the frame horns to get it to slide on any longer because the grill interefered. So I had to cut two notches in the back of my bumper so that it would just slide on.
It looks fine however, I'll post pictures later.